JPS5828713Y2 - Yosetsukiyodaiwaku - Google Patents

Description

[Detailed explanation of the idea] This invention relates to the underframe of a welding machine.

Conventionally, the housing structure of a welding machine has adopted a forced cooling system in which air is taken in from the top and exhausted from the bottom using a cooling fan, or vice versa, air is taken in from the bottom and exhausted from the top.

Therefore, the lower surface of the casing consists only of the underframe 1, and when viewed from below, the electrical components installed inside are exposed due to the ventilation holes 6.

In this state, when installing the welding machine transformer downward, the coil part 4 of the transformer or the wiring (not shown)
A part of the underframe 1 may hang down or peek out.

However, when transporting a welding machine, if you use the forks of a forklift to support the underside of the welding machine frame, the fork may come into contact with the hanging coils and wiring, damaging or abrading the sheathing. This may cause the wire to break or cause a major accident.

Also, when transporting the welding machine using the specified hanging bolts installed on the top, it may cause large vibrations when lowered, but the underframe has fewer support beams to increase the ventilation area, so the equipment The body may become strained and become distorted due to being unable to withstand the load of the transformer, etc.

This invention was made in view of the above points, and the figure shows one embodiment.

In this figure, reference numeral 1 denotes an underframe, which is assembled into a predetermined quadrilateral frame using shaped steel having an L-shape, U-shape, T-shape, etc. in cross section.

Then, a frame is formed with the planar side of the 0-dimensional surface facing the bottom as shown in the figure, which is convenient for mounting parts, and the wheel frame 2a having the wheels 2 is connected to this frame. and other equipment.

The attachment and connection of these devices is carried out, for example, through the side plate attachment holes 5 if there are any, or by screws, rivets, etc. using other tools if there are none.

Therefore, in the present invention, the opposite sides of the underframe 1 (two sides or four sides)
A flange-shaped standing edge 3.3... is provided so as to hang substantially downward from the side).

This upright edge is made of a band-shaped metal plate whose longitudinal edge is welded or riveted to the underframe, and is sometimes formed by folding back one side of the shaped steel, and its thickness depends on the weight and shape of the equipment it supports. This will be decided taking into consideration.

In addition, the length of the hanging wire and the width of the strip should be set to such an extent as to hide the exposed electrical wire, and if reinforcement is insufficient, the edge of the branch line should be tied or a bent part should be formed on the edge to increase the section modulus and make it able to withstand stress. It gives a cross-sectional shape that can be cut.

With this configuration, even if the transformer coil 4 and the wiring portion protrude below the bottom surface of the underframe, if the bottom surface is supported by a forklift, etc., the hanging portions of the transformer coil 4 and other wiring portions may be damaged. Not only does it provide reinforcement that can withstand large vibrations during descent, but the ventilation holes 6 become a type of ventilation tube, albeit short, due to the three groups of branch wires, preventing the cooling air from dispersing, and preventing the cooling air from spreading around the transformers. It has the effect of increasing the cooling effect, and furthermore, according to this invention, even when used outdoors in rainy weather, the branch line 3 prevents rainwater splashing from the ground from entering from below the underframe, protecting the vessel. This is an effective idea.

[Brief explanation of the drawing]

FIG. 1 is a front view of the underframe of the present invention, where a is a front view of the underframe, b is a partially cutaway view of one embodiment of the present invention, C is a partially cutaway view of another embodiment, and FIG. Figure 2 shows a bottom view of the underframe. 1...Underframe, 2...Wheels, 3...
...Branch line, 4...Transformer coil, 5...
・Side plate mounting holes, 6...Ventilation holes.

Claims (1)

[Scope of utility model registration request] In a welding machine having an underframe with wheels for movement at the bottom of the housing and a ventilation hole provided in the center of the lower surface of the housing, the underframe is attached to two or four sides opposite to the edge of the ventilation hole of the underframe. An underframe for a welding machine, which is provided with a rib-like standing edge on the lower side to protect the coil part and wiring of the transformer hanging below and to improve the cooling effect.